Myna specializes in A/B testing of websites, using multi armed bandit algorithms to learn on the fly. This means fewer page views are required for testing, which means faster learning, faster ROI. The result, Myna says, is increased conversions. The RESTful Myna API returns JSON and JSONP responses. It uses basic access authentication. On the API website it shows how to implement the API in HTML, Javascript and other languages, as well as how experiments are identified by UUIDs (universally unique identifiers), which show up on your testing dashboard and are needed by the API.

Mocapay focuses on mobilizing businesses' payment, loyalty, coupon, and gift programs through innovative software. Mocapay aims to unify merchant programs and payment options across all devices. To enhance its platform, Mocapay recently launched a token solution that integrates with any POS system via an API.

CityDeals.com, local/national deal and discount finder, enables developers to access its deals database via the CityDeals API. Third party apps can feature daily deals and discounts, or provide a searchable interface of CityDeals.com's entire portfolio of discounts. CityDeals.com partners with retailers and service providers around the globe to provide an expansive offer of discounts applicable on a national scale or at the local level.